Esteban Sánchez-Moreno, Lorena Patricia Gallardo-Peralta, Vicente Rodríguez-Rodríguez, Pablo de Gea Grela, Sonia García Aguña. "Unravelling the complexity of the relationship between social support sources and loneliness: A mixed-methods study with older adults." PLoS ONE, 2025. doi:10.1371/journal.pone.0316751